雑誌文献を検索します。書籍を検索する際には「書籍検索」を選択してください。

検索

書誌情報 詳細検索 by 医中誌

Japanese

The infiuence of lung volume on pulmonary hemodynalnics with special reference to interrelationship between alveolar pressure, plcural pressure and pulmonary circulatory pressures Toshihiko Tada 1 , Akio Nakashima 1 , Kenji Ikede 1 , Mikiyasu Shirai 1 1Division of Thoracic Diseases, Saiseikai Shimonoseki General Hospital pp.1041-1045
Published Date 1985/8/15
DOI https://doi.org/10.11477/mf.1404204730
  • Abstract
  • Look Inside

In the lung the variation in pressure outside blood vessels are great in many instances. Our purpose was to determine the relationship between pleural pressure (Ppl) and alveolar pressure (Pal), which effect on pulmonary circulation, when lung volume was changed. As lung volume increased, Ppl was decreased, while Pal held constant if airflow was stopped. On five patients without cardiopulmonary complications, right atrial pressure (Pra), pulmo-nary arterial pressure (Ppa) and pulmonary artery wedge pressure (Pcw) were measured at two lung volume, high lung volume (TLC) and low lung volume (FRC). In order to keep the lung volume constant and to evaluate Pal and Ppl, Valsalva maneuver was performed and Pal was measured at mouth simultaneously. Pra was decreased signif-icantly as lung volume increased and Ppl decreased, whereas Ppa and Pcw were held constant at two conditions. We suspected that Pra is effected by Ppl as extra vascular pressure, when lung volume was changed, while Pcw and Ppa are effected by Pal.


Copyright © 1985, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

関連文献

もっと見る

文献を共有